这是一张中国龙年窗花的模型，3mf文件里面包含开孔与未开孔两个模型，开孔的模型可以加装磁铁，如果你未缩放模型大小，那么磁铁的适配尺寸为5（直径）*3mm

This is a model of a Dragon Year window decoration. The 3mf file includes two models: one with holes and one without holes. The model with holes is designed for magnet installation. If you do not resize the model, the recommended magnet dimensions are 5mm (diameter) * 3mm